{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-21844", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.778Z", "datePublished": "2025-03-12T09:42:00.435Z", "dateUpdated": "2026-05-23T15:57:18.285Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:57:18.285Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Add check for next_buffer in receive_encrypted_standard()\n\nAdd check for the return value of cifs_buf_get() and cifs_small_buf_get()\nin receive_encrypted_standard() to prevent null pointer dereference." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/smb/client/smb2ops.c" ], "versions": [ { "version": "b03c8099a738a04d2343547ae6a04e5f0f63d3fa", "lessThan": "f277e479eea3d1aa18bc712abe1d2bf3dece2e30", "status": "affected", "versionType": "git" }, { "version": "858e73ff25639a0cc1f6f8d2587b62c045867e41", "lessThan": "f618aeb6cad2307e48a641379db610abcf593edf", "status": "affected", "versionType": "git" }, { "version": "9f528a8e68327117837b5e28b096f52af4c26a05", "lessThan": "24e8e4523d3071bc5143b0db9127d511489f7b3b", "status": "affected", "versionType": "git" }, { "version": "534733397da26de0303057ce0b93a22bda150365", "lessThan": "9e5d99a4cf2e23c716b44862975548415fae5391", "status": "affected", "versionType": "git" }, { "version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd", "status": "affected", "versionType": "git" }, { "version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "554736b583f529ee159aa95af9a0cbc12b5ffc96", "status": "affected", "versionType": "git" }, { "version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "860ca5e50f73c2a1cef7eefc9d39d04e275417f7", "status": "affected", "versionType": "git" }, { "version": "5.10.211", "lessThan": "5.10.235", "status": "affected", "versionType": "semver" }, { "version": "5.15.150", "lessThan": "5.15.179", "status": "affected", "versionType": "semver" }, { "version": "6.1.69", "lessThan": "6.1.130", "status": "affected", "versionType": "semver" }, { "version": "6.6.8", "lessThan": "6.6.80", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/smb/client/smb2ops.c" ], "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.130", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.80", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.17", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.5", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.211", "versionEndExcluding": "5.10.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.150", "versionEndExcluding": "5.15.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.69", "versionEndExcluding": "6.1.130" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.8", "versionEndExcluding": "6.6.80" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.13.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30" }, { "url": "https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf" }, { "url": "https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b" }, { "url": "https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391" }, { "url": "https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd" }, { "url": "https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96" }, { "url": "https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7" } ], "title": "smb: client: Add check for next_buffer in receive_encrypted_standard()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-21844", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:26:41.993251Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:36:34.743Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:38:00.594Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T12:04:02.128Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] } }